Cover for washboilers and like articles.



PATENTED JULY 14, 1908.

W. GRAY. oovm FOR WASHBOILERS AND LIKE ARTIOLES..

APPLIOATION FILED SEPT. 28, 1906.

u u j 'WITNEEISESI 4% zum WILLIAM GRAY, OF ROCHESTER, NEW YORK.

COVER FOR WASHBOILERS AND LIKE ARTICLES.

Specification of Letters Patent.

Patented July 14:, 1908.

Application filed September 28, 1906. Serial No. 336,556.

To all whom it may concern:

Be it known that 1, WILLIAM GRAY, a citizen of the United States, residing at Rochester, in the county of Monroe and State of New York, have invented a new and Improved Cover for Washboilers and Like Articles, of which the following is a specification.

This invention relates to sheet metal covers for wash boilers and other like articles of oblong conformation and having, preferably, rounded ends.

One of the objects of my present invention is to provide a cover which shall, by reason of the arrangement of the surfaces therein and the angles between such surfaces, be adapted to resist any action such as naturally results from careless usage tending to warp or distort the cover.

To this end my invention comprises in one piece integrally formed up an outer roll or flange for engaging the top of the boiler on the outside and cooperating therewith a flange adapted to engage the top of the boiler on the inside and within this inner flange I provide a roll of such a character as to thoroughly stiffen such flange and hold it in proper place and within that, preferably first a smaller bead or roll and then again within that, a series of planes so related to each other and at such angles as to thoroughly stiffen the inner and main portion of the cover and of these plane surfaces I prefer to provide six, four of them,-that is, two corresponding ones at each end, formed into semi-conically or semi-pyramidally formed portions of the cover in order to thoroughly stiffen the cover. The roll within the flange is provided to give greater rigidity and also in order that, in forming up the cover by means of dies, such roll may comprise means for holding the blank while the portions contlained within such roll are formed up by the c ies.

Another object of my present invention is to provide a handle of special construction comprising a section of wood or like heatin sulating material, secured in place by means of brackets which comprise not only supporting brackets for the wooden section of the handle but also sockets for receiving and ferrules for the ends of the wood portion of the handle, such combined socket, ferrule and bracket being formed integrally in one piece. There may, when desired, be inserted through suitable holes therefor in the bottoms of the sockets on the brackets and also through a hole in the handle a rod which may be headed down to act as a rivet for holding the parts together.

In the accompanying drawings I have shown such a cover and handle therefor.

Such drawings are as follows :Figure l is a top view of the cover. Fig. 2 is a vertical sectional view taken along the horizontal dotted line x -y in Fig. 1 and shows also a portion of the upper edge of the boiler with such cover in place thereon. Fig. 3 is a sectional view similar to that seen in Fig. 2 but taken at right angles thereto and along the vertical dotted line 9cy seen in Fig. 1. Fig. 4 shows in perspective one of the handle-supporting brackets.

Similar letters refer to through the several views.

Referring to the drawings,my cover comprises the outer roll or bead finished flange G which may or may not have a reinforcing wire as desired. This flange G engages over the outside of the roll H at the top of the boiler K and within the top of the boiler the downwardly extending iiange F is arranged to engage, such flange formed by a continuous depression in the upper surface of the cover. Within this flange F and the depression formed thereby there is seen the large quarter round E and immediately within that a semi-circular bead or roll D; such roll E is provided to stiffen and brace the outer edge of the cover against the thrusts exerted thereon in any rough treatment of the portion of the cover comprised within such roll. Within this smaller semicircular bead D there are formed the two semi-conical sections 0 and 0 extending into the sections 0 and c and c and 0 respectively. Between the pair of sections 0 and c and the pair of sections 0 and 0 there are seen ridges or hips slanting downwardly from the apex of the cover to the apex of the semiconical sections 0 and 0 respectively, the sections 0 and 0 c and 0 s10 ing downwardly towards the sides and a so towards the end of the cover. Triangular sections a and 0 having lane surfaces sloping downwardly from t e center of the cover and towards the straight sides thereof are seen and between such sections 0 and c and the adjoining sections a and c and c and c are seen hips or ridges. The ridges between these several sections 0, c c 0 and c serve to stiffen and truss the entire ortion of the cover contained within the rol s or beads D similar parts and This construction results in so stiffening the cover that when properly sustained upon the highest point of the cover by means of a block or pad measurably fitting the cover, a weight of two hundred pounds or more may be imposed without any injury whatever to a cover of ordinary thickness.

On account of the conformation of the plane sections of my cover, I prefer to make use of a special attachin means for the handle thereof. My handle comprises two brackets such as A each struck up from a single sheet of metal to the form indicated in Figs. 1, 2, 3 and 4 comprising a cup-shaped socket a ada ted to receive the end of the Wooden hand e and integrally formed therewith is seen the sustaining web (1 having the vertically disposed and semi-circularly formed stiffening ridge a and also the base or foot piece a extending in a nearly horizontal direction therefrom. This foot piece a is formed in two planes uniting in a ridge at the center and so disposed angularly as to fit over the ridge between either the pair of sections 0 and c or c and c of the cover. In the bottom of the cup or socket a is seen a hole through which and also through a corresponding hole through the handle B there may be inserted any suitable bolt or rivet such as b when desired.

I desire to call attention to the fact that the rolls or beads E and D operate as stren thening members to prevent a spreading of the pyramidal structure of the cover within such beads or rolls in the same way that a bend, turn or bead at the base of a simple hollow cone formed up of sheet metal tends to prevent the spreading of the cone at its base when subjected to pressure applied at the apex tending to flatten the cone. Such bend, turn or bead tends to stiffen the base line, prevent a spreading thereof and also to retain the same within its normal plane.

What I claim is 1. A cover for Wash boilers and like articles comprising; a flange; within such flange a strengthing bead or roll; within such bead or roll two semi-pyramidal formations oppositely located at the ends of the cover and between such semi-pyramids and the straight sides of the cover a series of six plane surfaces of triangular conformation all extending obliquely upwards to the apex of the cover and each one being united to an adj acent one on either side thereof in a ridge or hip, two of such ridges extending from the apexes of such semi-pyramids to the apex of the cover, four of such ridges extending from the bases of such semi-pyramids to the apex of the cover and each of such semi-pyramids extending to two of such triangular surfaces.

2. In a cover for wash boilers and like articles; a strengthening bead or roll extending around, within and near the outer edge of the cover; within such bead or roll two semi-pyramidal formations oppositely located at the ends of the cover and between such semi-pyramids and the straight sides of the cover a series of six lane surfaces. of triangular conformation al extending obliquely upwards to the apex of the cover and each one being united to an adjacent one on either side thereof in a ridge or hip, two of such ridges extending from the apexes of such semi-pyramids to the apex of the cover, four of such ridges extending from the bases of such semi-pyramids to the apex of the cover and each' of such semi-pyramids extending to two of such triangular surfaces.

3. In a cover for wash boilers and like articles having curved ends; a strengthening bead or roll extending around and within the edges of such cover; within such strengthening bead or roll two semi-pyramidal sections conforming in curvature to the curvature at the ends of the cover and between such semipyramidal sections a series of plane surfaces; the sides of each such semi-pyramidal sections extending tangentially into two of such plane surfaces which extend obliquely up wards, intersect and are united in a ridge or hip extending obliquely upwards from the apex of such semi-pyramids, each one of such plane surfaces being united to an adjacent one in a ridge or hip and all of such ridges or hips extending obliquely upwards to the apex of the cover at approximately its center.

4. In a cover for wash boilers and like articles a strengthening member extending around and near the edge of the cover and within such strengthening member two semipyramidal sections conforming in curvature to the curvature at the ends of the cover and between such semi-pyramidal sections a series of plane surfaces; the sides of each such semi pyramidal sections extending to two of such plane surfaces which extend obliquely upwards, intersect and are united in a ridge or hip extending obliquely upwards from the apex of such semi-pyramids, each one of such plane surfaces being united to an adj acent one in a ridge or hip and all of such ridges or hips extending obliquely upwards to the apex of the cover at approximately its center.

WILLIAM GRAY.

Witnesses:

W. J. MOKELVEY, GEORGE B. SPENCER. 

